AT&T MERLIN LEGEND MLX-10 Non-Display Telephone User Manual page 21

Your MLX-10 Telephone
SA Originate Only. Use this button only to make calls; calls
do not come in on this button. To make an outside call, enter a
dial-out code (usually a 9) before dialing the phone number.
This button is set up by your company to make either inside
ringing or voice-announced calls (not both).
Shared SA. Use this button to answer calls for co-workers and
to join their conversations. Each button is linked to a specific
SA button on a co-worker's phone. Shared SA buttons are
labeled either Shared SA Ring or Shared SA Voice,
depending on which type of inside calls the button allows you
to make. You can use these buttons to make and receive
inside and outside calls, just like your own SA Voice and
SA Ring buttons.
555-1234. Use any button labeled with a phone number to
make or receive outside calls only. This is called a "personal
line" because it appears only on your phone or on a specific
group of phones. It is a direct outside line that does not need
a dial-out code.
WATS. Use buttons labeled with special service names like
WATS to make and receive outside calls at a reduced cost.
A dial-out code is not needed.
Pool. Use these buttons to make and receive outside calls.
A Pool button automatically selects one of a group of outside
lines. A dial-out code is not needed.
1-8
Line Buttons